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<title>3-7-2</title>
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	<strong title="选择你最喜欢的水果." >你最喜欢的水果是?</strong>
	<strong title="选择你最喜欢的水果." >你最喜欢的水果是?</strong>
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	  <li title='苹果'>苹果</li>
	  <li title='橘子'>橘子</li>
	  <li title='菠萝'>菠萝</li>
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